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he always responded very quickly, looked over my files with great detail and kept me in the loop with every stage of the process
Number and rate (per 1,000 person-years) of lung cancer deaths by number of cigarettes smoked per day, Doll and Hill physician cohort study, Great Britain, 1951-1961 Daily number of Rate difference cigarettes smoked Deaths from lung cancer erson Mortality rate years at risk per 1000 erson-Vears Rate Ratio per 1000 erson-Vears 42,800 38,600 38,900 25,100 102,600 145,400 0.07 referent referent 1-14 15-24 25+ All smokers Total 23 56 62 141 144 NOTE: For 19, 20, 22, and 23 you MUST show the equations along with the answers
They were much interested